Electronic device with wireless charging and battery heating
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United States of America Patent
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Nov 17, 2020
Grant Date -
Jan 11, 2018
app pub date -
May 4, 2017
filing date -
Jul 7, 2016
priority date (Note) -
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status (Latency Note)
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Abstract
A wireless power transmitting device may transmit wireless power signals to a wireless power receiving electronic device. The electronic device may have a coil that receives the transmitted wireless power signals and may have a power receiving circuit that rectifies the received wireless power signals to produce a corresponding direct-current voltage signal. The direct-current signal may be used to power circuitry in the electronic device and may be used to charge a battery in the electronic device. Control circuitry in the electronic device may use a temperature sensor to make temperature measurements. In response to detecting that the device is below a given threshold temperature and based on other information such as information on which applications are running on a controller in device, the device may supply drive current signals to the coil to heat the battery and improve battery performance.
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